本帖最后由 stucashS 于 2010-6-14 08:47 编辑
Q29: Smithtown
University’s fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted.
This success rate, exceptionally high for university fund-raisers, does not indicate that they were doing a good job.
On the contrary, since the people most likely to donate are those who have donated in the past, good fund-raisers constantly try less-likely prospects in an effort to expand the donor base.
The high success rate shows insufficient canvassing effort.
Which of the following, if true, provides more support for the argument?
A Smithtown University’s fund-raisers were successful in their contacts with potential donors who had never given before about as frequently as were fund-raisers for other universities in their contacts with such people. B This year the average size of the donations to Smithtown University from new donors when the university’s fund-raisers had contacted was larger than the average size of donations from donors who had given to the university before. C This year most of the donations that came to Smithtown University from people who had previously donated to it were made without the university’s fund-raisers having made any contact with the donors. D The majority of the donations that fund-raisers succeeded in getting for Smithtown University this year were from donors who had never given to the university before.
E More than half of the money raised by Smithtown University’s fund-raisers came from donors who had never previously donated to the university.这题答案是C。我选了个B。。。其实这题我不太读得懂题目意思。。哎。。求教牛牛们，这题如何推理呀~ | 
